Machine for applying sand, powder, or similar substances to molds.



W. C. TUTHILL.

MACHINE FOB APPLYING SAND, POWDER, 0R SIMILAR SUBSTANCES T0 MOLDS.

APPUCATION FILED JULY 14. 1917.

1,250,531. Patented Dec.18-,191?.

9 SHEETS-SHEET 1.

W. C. TUTHBLL. MACHINE m2 APPLYING SAND, POWDER, 0R SIMILAR SUBSTANCEST0 MOLDS.

' APP'HCATION FILED JULY 14 1911. 1,250,531. Patented Dec. 18, 191?;

9 SHEETS-SHEET 2.

$3M; \jf%H/I/7 his afforuct p W. C. TUTHILL.

MACHINE FOR APPLYING SAND, POWDER, 0R SIMILAR SUBSTANCES T0 MOLDS.

APPLICATION FILED JULY I4. I917.

Patented Dec. 18, 1917;

9 SHEETS-SHEET 3- W 5 A v W, gluwzmfoz witnesses: J/Qaa W. C. TUTHELL,

MACHINE FOR APPLYING SAND, FOWDEE; 0H SlMILAR SUBSTANCES T0 MOLDS.

' APPLICATIOAI FILED iULY 14,19IL 3,25%531.

l atanted Dee. i8, 191?;

9 SHEETS-SHEET 4.

W. C.- TUTHILL.

MACHINE FOR APPLYlNG SAND, POWDER, 0R SIM lLAR SUBSTANCESTO MOLDS.

APPLICATION FILED IULY 14. Hill.

Patented Dec. 18', 1917.

9 SHEETS-SHEET 5 HW'" NEW a 1 l/vuncoocoz Uuvcu-l'oz mo GHOIZ'HCIJ" W.C. TUTHILL. MACHINE FOR APPLYING SAND, POWDER, 0R SIMILAR SUBSTANCES T0MQLDS. APPLICATION FILED JULY 14. 1911.

1,250,531; Patented Dec. 18,1917.

9 SHEETS-SHEET 6.

. W. C. TUTHILL. MACHINE FOR APPLYING SAND, POWDER, 0R SIMILARSUBSTANCES T0 MOLDS.

APPLICATION FILED IULY,I4. 19H. 1,250,531. Patented Dec. 18,1917;

9 SHEETS-SHEET 7- wit comp: I 4%,,

'w. c. TUTYHlLL. MACHINE FOR APPLYING SAND, POWDER, 0R.SIMILARSUBSTANCES T0 MOLDS. APPLICATION HLD JULY 14. 1917.

1,250,531. I Patented Des, 18, 1917.

9 SHEETS-SHEET a.

0% mo WW w. c'. TUTHILL. MACHlNE FOR APPLYING SAND, POWDER, OR SIMILARSUBSTANCES T0 MOLDS.

' APPLICATION FILED IULY'H. lair.

1,250,531; Patented Dec. 18, 1911.

1 9 suns-sneer 9.

-WILLIA M o. TUTHILL, or Lone ISLAND CITY, NEW YORK.

' MACHINEYTEORVAPPLYINGSAND, POWDER, (DB/SIMILAR sUBsrANonsTo MoLns.

fTo. all mhom it may concern:

;'Be it .known that I,' WI LIAM C. TUjrH LL,

, a. citizen of the United'States, and resident 0f.- Long Island City,county of Queens, and I State,' of New York, have inventedcertain newanduseful Improvements in Machines for Applying .Sand, Powder, or SimilarSubstances to Molds, of which the following is a full, clear, and exactspecification, reference being had to the accompanying drawlin gs,illustratinga machine constructed in ..-,accordance with my invention,and where- Figure 1 is a side view, and Fig.2 a plan view, of themachine; the parts thereof be- ,ing shown in these views in their relatve positions when the arms carryingthe aws have grippedthe moldstillsetting uponthe Figs. 3 and 4 are aside view and a plan view likeFigs. 1 and 2 respectively, but

, showing the parts in their relative positions Qmold, being partiallyturned; a V

Fig.5 is also a plan view like F g. 2, but

,when the arms carrying the jaws have been receded with the mold raisedfrom the drum the jaws, gripping the mold, andthe showing the parts intheir relative positions fivhen-the arms carrying the jaws are loweredintheir receded position and moved apart, the mold being therebydisengaged from the jaws and deposited on therunway;

w Figs, 6, 7 and 8 are'fractional sectional vviewson lines 6-7-6, 7.7and S 8 respecillustrate only the mechanism actuating the ij'armscarrying the jaws, and Fig. 8 themech Fig. 9 is a sectional view,looking to. the

tively, indicated in Fig.2; the Figs-6 and 7 'anisrii turning the vjaws,all other mechaii'nisins being omitted the relative positions .fpearinFig. 2, areshownin these figures in [of theparts of these mechanisms asthey apf ull.lines,and their positions, whenthe arms shown in-Figs.and4,.are.shown in dotted ,left, on line 9' 9,'indicated in Fig. 1, and

IFig. lOis a sectional'view on the same line as Fig. ,9, but lookingtothe right, this figure illustrating particularly the mechanism forjmovingthe moldsalong the runway;

I Figs. ll, .12 and 13 are fractional side ,ygi'ews of thelmachine,illustrating the mechanismtfor intermittently turning the drum, a d heappl e Q l e ins the m ld Specification of ltetters Batent.

Patented Dec. 18, 19 17.

Applioationifiled July 14, 1917. Serial No. 180,588.

My invention relates to appliances for. apply ng sand, powder, or othersimilarsubchine, designed to perform, automatically,

thework heretofore done bythe hands of men particularly employed forvthe purpose. A machme, constructed according to my invention, as forinstance, the machine illustrated in the accompanying drawings, designedfor sanding brick-makers molds,

comprises, besides the rotating receptacle (drum) for the sand or brickpowder to be applied to the molds, (l) m'eans'for depositing,successively,.upon the openings'in the drum, the fresh (unsanded) molds,(2) mechanism for lntermittently rotating the drum, whereby the moldsare filled with .sandpand emptied again, and then brought stances tomolds, used, for instance, in brick maklng, casting of metals,manufacture ofartificial stone, etc., and consists of annainto. aposition to be lifted from the drum, I

and'transferred to the runway; (3) means for holdingthe molds injtheirposition while the drum is rotated; (4:) a pairof movable arms, to whichgripping jaws are movably secured; (5) mechanism operatingthe arms andthe jaws, to lift the molds, one after the other, from, thedrum, shakingeach mold to remove ,the superfluous sand, or powder,

therefrom; and then raising and moving each mold to, and depositing iton, a run- -way; (6) mechanism for moving themold along the runway.

These component parts of the. machine,

{and the driving mechanism therefor are mounted in a suitably shapedframe-,uthe parts whereof are deslgna-tedin thedrawingsbyreferenceletters a,b, c,-d,,e, f andg,

I to better distinguish these parts from the movable, or operating,parts of the ma- ..chine, which are designated ibyreference 4 numerals.I fare"rai sed,. andthe jaws-lpartly.turnedas The otatingreceptacleforthe sand or 14:,afliXed to the frame. The ends of the drum areclosed, and openings 15 are provided in the sides. l These openings150011- form in shape and dimensions to the molds to beisanded,and areprovided with flanges "16, engaging the molds to better hold the latterin. position upon the openings, and .--to

preventspilling of the sand, or powder,;or other similar substance. to.beappliedto the gn gl 1Tb? mil l Q-HfiXQdltOIheL ull-side I one-quarterof a revolution at each turn, and

stands still during the intervals During each quarter revolution of thdrum 12, one

- fresh (unsanded) mold is taken up from the slide 18, and one sandedmold is brought to the top side of the drum. This position, required forthe action of the jaws carrying arms 51 and 51*, is shown in Fig. 1 in aside view, and in Fig. 2 in plan View.

The mechanism for thus rotating the drum 12 is constructed as follows:

A four point-ed ratchet wheel 22 is fixed to the drum shaft 13, and apawl frame 24 is rotatably mounted on the hub of the ratchet wheel thepawl frame 24, and its point is pressed upon the periphery of theratchet wheel 22 bythe curved spring 26, whose other end is secured tothe pawl frame 24. The tail of the pawl frame 24 is connected by link 28to cross-head 29, movably mounted on guideway 30. A lever 19 is hingedto a lug 20, fixed to the base a of the machine; its upper end ispivotally connected by link 21 to the cross head 29. A pin 31 is set inthe lever 19, approximately midway between its end, and one end of thespring 33 is secured thereto, the other end of the spring 33 isconnected to the rear post of the guideway 30, or may be connected tosome part of the machine frame. Pin 31 extends through the lever 19, andits projecting part serves as a stud whereon the roller 38 is mounted.The eccentric cam 35 is fixed to the shaft 34 in position to act on theroller which is held against it by the spring 33, and thus, when theshaft 34 is rotated, the cam 35, acting on the roller 36, swings the lver 19, and causes the link 21 to draw the cross-head 29 in thedirection away from the drum 12 The link 28, connecting the cross-headwith the tail of the pawl frame, draws the latter inthe same direction,and the pawl 23 being then 1n engagement with one of the four points ofthe ratchet wheel 22, the action of the cam 35 rotates the drum 12 onequarter of a revolution, The eccentricity of the cam 35 is determined toproduce the required extent of this motion. The spring 33 tends to drawthe ever 19 in the opposite direction, and thus, when the roller 36 haspassed the apex of the eccentric portion of the cam 35, draws the lever19 returning it to its nor.- mal, vertical position. During this returnswing of the lever 19, propelled by the reaction of the spring 33, thelink 21 pushes the cross-head 29 toward thedrum 12. This reversemotionof the cross-head 29 is im- 22; a pawl 23 is pivoted in parted bythe link 28 to the pawl frame 24, which is thereby swung reverselyrelatively to the still standing ratchet wheel 22. During this reverserotation of the pawl frame 24, the drum l2 and ratchet wheel 22 standstill, the point of paw-1'23 slides on the periphery of the ratchetwheel'22. At the end of the reverse movement of the cross-head 29, andof the pawl frame24, the point of the pawl 23 passes the neXt tooth ofthe ratchet wheel 22, and is pressed in engagement therewith bythespring 26. The part of the periphery of the cam 35 between the pointsmarked X and Y in" Fig. 11 of the drawing, is circular and concentrlcwith the shaft 734. During the .period, in which this part of the cam 35contacts with the roller 36, the lever .19, the cross-head 29, the pawlframe 24 and the drum 12, stand still. When the eccentric portion of thecam 35'again begins toact on the roller 36, the lever l9sis started onits swing, themotion of the cross-head is reversed, the link 28 acts onthe pawl frame 24 as explained, and the pawl 23, being then engaged withthe ratchet wheel 22,- the drum is rotated again one-quarter of itsrevolution. While the drum 12 stands still in its position, during thereverse rotation of the pawl frame 24, and while the circular andconcentric part of cam 35 contacts with the roller 36, the othermechanisms of the machine act upon the mold,

which is then 011 the top side of thedrum 12. These mechanisms and theiroperations are described and explained farther on." i

The mechanism for holding the molds to the drum during the operation ofapplying sand thereto is shown in Figs. 10 and 11.

This mechanism comprises the shafts 41 and 41 two pair. of flangedsprocket wheels (or belt pulleys) 43, 43 and 44 and 44 fixed thereon,two endlesslchains (or belts) '45 and 45 and two pair of idlers 42,rotatably mounted on shafts 47 and 47between collars 50, Shafts 47and 47are journaled in adjustable bearings 49 of the machine, one on each sideof the drum 12. The shaft 41' is rotatably mounted in bearings 46,

' aflixed to the posts cl of the frame offthe machine; the shaft 41 isrotatably mounted in bearings 46 fixed on brackets 48, formed on themachine frame; the sprocket wheels 43 and 44 are fixed to the shaft 41,and the sprocket wheels 43" fand 44" to the shaft 41, the sprocketwheelsi43 and 44 being set in alinement with the sprocket wheels 43 and44 set on the shaft 41.

onthe shafts Y41 and 41 corresponds to,

Theend less chains 45 and 45 are slun over the" about three-fifths ofthe circumference 'of the drum 12 with the molds set in their positionsover the openings in its sides;-the

'idlers 42 serve to prevent contact of this run of the chains with theoppositely moving outer run. The chains. coiiperate with the flanges 16and rails 17 in holding the molds againstthe drum 12 when, thelatter isrotated, and prevent the molds from falling ofhof the drum, besidessupporting the weight of the sand or powder, filling the molds.

with, but it is thought to be preferable to make thearms separablefromthe levers to facilitate their adjustment, and, eventually,

also, the meet arms of a different shape or different dimensions. Thelevers 52 and 52 are pivotally connected to-links 5eiand55 respectively,'and'these links are again pivoted at 54 and '55 to the rocking lever,56; link55 at .the end of lever 56 and link- 51 approximately midwaybetween its ends.

The rocking lever 56 is fulcrumed at 57, midway between the pivotaljoints 5 .6 and 55 ,-to rockshaft 58, journaled in posts 59, fixedly seton the 'rockshaft 61 journaled in the frame of the machine; the levers52 and 52 ,v arepivoted'at and 60* respectively, to the brackets 62and62 secured to,-or made integral with, the rockshaft 58. By thisconstruction the jaws-carrying arms 51 and 51 are made movable in unisontoward each other, or away from each other,.a1so forwardly andrearwardly, and up and down,

The moving of the arms 51; and 51 toward each other, and apart again, isefi'ected by the bell crank 63, pivoted to the post 61, and having itsupwardly extending arm 63 connected by a ball and socket joint to oneend of link 65, whose other end'is connected, also by a ball and socketjoint, to the lever 56. The horizontally. extending arm. 63 of thebellcrank lever 63 is pivotally connected bylink 67 to the lever 68 near itsend, to which the spring 71 is connected; the other endof'lever 68 ishinged totherod 69, The other end of spring 71 is secured to the; lug 70 set in thebase of the machine. The roller 73 is rotatably mounted onstud 72, set in the lever 68, and'is held.,.by the 2 spring 71, incontact-with the cam 74, fixed to the cam-shaft 8 1; Cam 741 isappropri: ately shaped to raise .the lever 68, the spring 71 drawing.it, down again. These motions of the lever 68 aretransmitted, by thelink 67, to the bell cranklever 63, and by the link tothe lever 56,swinging it on its pivot. The movements of lever 56ers imparted by links51 andv 55 to the levers 52 and 52?, by which the jaws carrying arms 51and 51 are moved together, or apart from each other. These motions aretimed to occur in concert with the actions of the othermechanismsoperating the arms 51 and 51:, and with the actions of the mechanismsactuating the other movable parts of the machine.

The arms 51 and 51 are raised andlowered by the lever 76, operated bythe cam 77, which is fixedon the shaft 3%, in position to act upontheroller 79, rotatably mounted on the stud 80, set in lever 76, ap-

proximately midway between its ends. The rear end of lever'76 is hung onthe rod '69,

andits forward end is pivotally joined to the lower end of post 81,whose other, upper end, is pivoted to one of thebrackets 62,

whereon the jaws carrying arms 51 and 5'1 are supported. The shape ofcam 77, and its position on the cam-shaft 3%,determin'e the time andextent of. the movements, raising and lowering the: arms 51 and 51 andthese movements are timed to occur in the order of, and relatively to,the movements of the other mechanisms.

The shaking of the molds is produced by the samemechanism raising. andlowering the arms 51 and 51. The cam 77 has two lifting protuberances,83 and 84, and two recesses, 83* and 8. 6, each immediately follOWing'one of the two protuberances. The

protuberance 83 acts first on the lever 76 prol ducing'a slight-raisingof the arms 51 and 51 Thisoccurs immediately after the aws have grippedthe mold to beremoved from the drum 12.

and 51*, whereby themold gripped in the aws is shaken, and allsuperfluous sand, or

The depression 83 immediately following the protuberance 83, pro- .ducesan abrupt dropping of thearms=51 powder, adhering. to the mold,shakenoif and returned to the drum 12 through the opening from which themold was lifted.

The mechanism moving the jaws carrying arms 51 and 51 forward, or towardthe drum, to take up the mold, and then rearward again, away from thedrum, to carry the mold to the runway 86,- is actuated by the cam 87,spring 96, leverSS and link '89,

the latter connecting th'e'lever '88 with the arm 91, fixed to therockshaft 61. The lower end of the lever 88 is hinged to lug 90, fixedin the base of the machine. The roller 93, revolubly mounted on stud 92,set-in the lever 88 near its other end, is held'in contact with theperiphery of'the cam 87 by the tension of the spring 96, whose one endis secured to the rod 69, whileits other end is-connected with the freeend of lever 88. This free end of lever 88 is thus moved to and from bythe cam 87 and the spring 96,

the time and extent of these motions being determined by the shape anddimensions of the cam 87, and by its position on shaft 34:.

The oscillating motions of lever 88 are transmitted by the link. 89 tothe arm 91, and Y thereby actuate the rockshaft 61, to which the posts59, whereon the rockshaft 58 and brackets 62, supporting the arms 51 and51* are mounted. The jaws carrying arms are thus moved forwardly andrearwardly, these movements occurring in concert with the motionseffected by the other cooperating mechanisms moving the arms 51 and 51and turning the jaws 98 and 98" pivoted thereto.

The turning of the jaws is effected by the cotiperation of thepreviously described mechanisms for raising and lowering, and forreciprocating the jaws carrying arms 51 and 51, with mechanismconstructed as follows:

The rockshaft 101 is journaled in bearings 102, affixed to the posts 59,which are rigidly mounted on rock-shaft 61. Two arms, 103 and 104, thelatter being one arm of a bell Crank lever, are fixed to the rockshaft101, and their free ends are pivotally connected, by links 105 and 105,to cranks 106 and 106*. The other ends of these cranks 106 and 106 arerigidly aflixed to pivots 107 and 107, revolubly set in the free ends ofarms 51 and 51, and having the jaws 98 and 98 fixed thereto. The otherarm of hell crank lever 10-1 is pivotally connected by link 108 to lever109, whose other end is hinged on rod 09. The stud 110 is setapproximately midway between the ends of the lever 109, and the roller111 is rotatably mounted thereon. The cam 112 is secured to the camshaft3% in position to contact with the roller 111, and a spring 113, whoseone end is connected to the lug 114, set in the base of the frame of themachine, and its other end to the lever 109, draws the latter down andholds roller 111 against the cam 112. This cam 112 is so positioned uponthe shaft 34, relatively to the cams 77 and 87, that the mechanism forturning the jaws is set'in motion to start the'links 105 and 105forwardly when the free ends of arms 51 and 51 are being raised, afterthe mold is gripped by the jaws 98 and 98 and shaken as hereinbeforeexplained. The forward movement of the links 105 and 105 is continuedduring the upward swing of the arms 51 and 51-", the jaws 98 and 98being thereby turned approximately 90 from the axial line of the arms51'and 51. During the then following retrograde movement of the arms 51and 51 the cam 112 continues to raise the lever 109, and then holds itin its raised position during the descending swing of the arms 51 and 51toward the runway 86. Thereby a further turning of the jaws 98 and 98(90) is effected. The mold, which was taken up from the drum bottom upis thereby turned over 180 and held right side up. At this point thearms 51 and 51 are moved apart, withdrawing the jaws 98 and 9S from themold, and raised.

The mold is thereby placed upon the runway 86 to be moved along to itsfinal destination. The reverse turning of the jaws 98 and 98 iscommenced with the raising of the arms 51 and 51, and is completed whenthe ends of the arms 51 and 51 descend again to the next mold to betaken up by the jaws.

The mechanism for moving the molds along the runway is illustrated in Fig. 10 of the drawings. Two sprocket wheels 117 and 117 are rotatablymounted underneath the runway 86 on studs 118 and 118, set in posts 116and 116 forming part of the frame of the machine. The chain 119,stretched over the sprocket wheels 117 and 117 carries the thumbs 121,secured thereto at intervals corresponding to the dimensions of themolds. The chain 119 passes close to, and in alinement with, the rum way86, wherein a longitudinal slot 122 is provided in line therewith. Thethumbs 121 are made of suflicient dimensions to pro ject, through theslot 122, above the bottom of the runway 86. The chain 119 is propelled,in the direction indicated by the arrow in Fig. 10, by the sprocketwheel 123, keyed to the transmission shaft 124:, journaled in bearings125 and 125 set in the frame of the machine. The bevel gear 126, set onthe other end of shaft 124, meshes with the bevel gear 127 keyed to thecam-shaft 34. These gears, and the sprocket wheels 118, 118 and 123, areproportioned to move the thumbs 121, which stand in the position shownin Fig. 10, when the mold is deposited on the runway 86, with sufficientspeed to transfer the mold to the inclined part of the runway 86, alongwhich it is propelled by gravity, while the arms 51 and 51 are broughtforward to lift the next mold from the drum 12 and receded again,carrying it to the runway. The runway 86 is flanged, the flangesassisting in the orderly movement of the molds, and preventing transverse displacement thereof in case of acci dental obstruction in theirpath.

The driving germ- 1 he machine is driven by a belt passed from anengine, or other motor, over the pulley 131, keyed to the shaft 132,journaled in bearings 135 and 135 set in the frame of the machine. Thecogavheel 133, keyed to the shaft 132, meshes with the cog-wheel 134:,fixed to the intermediate shaft 136, to which also the small cog-wheel137 is afiixed. This cog-wheel 137 is geared to the cog-wheel 138, keyedto the cam-shaft 34, which is the driving shaft of the operatingmechanisms of the machine. The pulley 131, fixed to the shaft 132, isformed to serve as a fly-wheel to stabilize the running of the cam-shaft34, and of the mechanisms actuated by the several cams fixed thereon.

The operation of the machine.-This machine is designed to perform,automatically,

the work heretofore perforined'by manual ply of the molds to be'sandedor powdered is piled upon theslide 18. The molds are placed in theposition shown in Fig. 1, the lowermost mold resting against the rails17 on the full side of the drum nextto the end of slide 18. The drive ofthe machine is then started, and when the drum 12 is rotated one-quarterof a revolution, the opening, through which the sand or powder, etc.,was charged into the drum, is moved underneath the lowermost mold. Thismold then drops onto the opening, the rails 17 which held it having beenmoved by the turning of the drum 12; the sides of the mold engage withthe flanges 16 surrounding the opening. As the drum 12 is rotatedfarther, the mold is engaged by the endless chains 45 and 45 holding itagainst the drum, the sand or powder charged into the drum 12 falls intothe mold (and into each successively following one) and back into thedrum again, as the revolution of the drum progresses. As each mold isbrought to the top ofthe drum 12 (the position shown in Fig. 1) the arms51 and 51, having been in the meantime moved forwardly and downwardly.are on the level with the, mold, and laterally in line therewith. Thejaws 98 and 8 are then also inline with the mold. Then the mechanismmoving the arms 51 and 51 together and apart comes in action; the armsare moved together and the jaws grip the mold;

After the mold is gripped by the jaws 98 and 98, as above explained, themechanism raising and lowering the arms 51 and 51 acts, raising the armswith the mold above the opening from which the mold is being removed.and then abruptly dropping them again. Thereby all superfluous sand orpowder, which may be adhering to the mold is shaken out from the moldand returned to the drum 12. Then again the mechanisms operating thearms 51 and 51 comes in action; the arms. with the mold gripped by thejaws, are raised and moved rearwardly and then downwardly again,bringing the mold to the runway 86,.whereupon the arms 51 and 51 aremoved apart, the mold being thereby released froni'the jaws '98 and 98and deposited upon the runway 86, where it is then engaged by the thumbs121 and removed from the machine. While being thus transferred to therunway 86 the mold is completely turned over by the hereinbeforedescribed co-action of themechanisms, those moving the arms 51 and 51and the mechanism for turning the jaws 98 and 98, so that the mold,which was takenfbottom up'froin the drum 12 is deposited right. side upon the runway;

I claim as my invention:

1. A machine forapply'ing' sand, powder, and the like to molds,comprising a frame,

a'hollow drum, having suitable openings in its sides, rotatablyniountedfin the frame;

mechanism for intermittently rotating the drum; means for holding themolds therei to; a pair of arms, movably mounted in the frame andprovided with gripping means on their free ends; and automaticallyoperating mechanisms, actuating the arms to grip, lift and shake, andthen remove each mold brought to the topside of the drum when theoperation of applying thereto of sand, powder or thelike is completed;substantially as herein. shown and described.

2. A machine for applying sand, powder and the like to molds, comprisinga frame, a hollow drum,'having suitable openings in its sides, rotatablymounted inthe frame; mechanism for intermittently rotating the drum;means for holding the. molds there-' to; a pair of arms movably mountedin the frame and provided with gripping means on their free ends; andmechanisms, operatively connected with the arms, for mov- 1 ing the armstoward the-drum, then down:

and toward each other to take up the mold on the top side oftlie drum,then moving the arms up and away from the drum. and away from each otherto release the molds removed from the drum: substantiallyjas'"liereinsliown and described.

3; A machine for applying sand, powder down and toward each other; thenup and toward the runway. and then away from each other. to deposit themold, removed from the drum, upon the runway,; and mechanism for movingthe molds along the runway: substantially as herein shown and described.

4. A machine for applying sand, powder and the like to molds, comprisinga frame, a hollow drum, having suitable openings in its sides, rotatablymounted in the frame; mechanism for intermittently rotating the drum;means for holding the molds thereto; a pair of arms movably mounted inthe frame; gripping jaws, pivoted to the free ends of the arms;mechanisms, operatively connected to the arms, and to the jaws, movingthe arms toward the drum, and the jaws in line therewith, then movingthe arms down and toward each other, to grip the mold on the top side ofthe drum, then upward and away from the drum, to remove the mold fromthe machine, simultaneously revolving the jaws to reverse the mold, andthen moving the arms apart to release the mold: substantially as hereinshown and described.

5. A machine for applying sand, powder and the like to molds, comprisinga frame, a hollow drum, having suitable openings in its sides, rotatablymounted in the frame; mechanism for intermittently rotating the drum;means for holding the molds thereto; a runway; a pair of arms movablymounted in the frame; gripping jaws, pivoted to the free ends of thearms; mechanisms, operatively connected to the arms, and to the jaws,moving the arms toward the drum, and the jaws in line therewith, thenmoving the arms down and toward each other, to grip the mold on the topside of the drum, then upward and toward the runway, simultaneouslyrevolving the jaws to reverse the mold, and then moving the arms apartto re lease the mold removed to the runway, and mechanism for moving themolds along the runway: substantially as herein shown and described. 7

6. A machine for applying sand, powder and the like to molds, comprisinga frame, a hollow drum, having suitable openings in its sides, rotatablymounted in the frame; mechanism for intermittently rotating the drum;means for holding the molds thereto; a pair of arms movably mounted inthe frame and provided with gripping means on their free ends; andmechanisms, operatively connected with the arms, one for moving the armsup and down. one for moving them forward and rearward, and one formoving the arms together and apart from each other; a driven shaft, andmeans on the shaft actuating each of the aforesaid mechanisms in apredetermined cycle, moving the said arms toward the drum. and downward,and to move the arms together when the drum stands still to take up themold on the top side of the drum, then moving the arms up and away fromthe drum. and away from each other to release the molds removed from thedrum; substantially as herein shown and described.

7. A machine for applying sand, powder and the like to molds, comprisinga frame, a hollow drum, having suitable openings in its sides, rotatablymounted in the frame; mechanism for intermittently rotating the drum;means for holding the molds thereto; a pair of arms movably mounted inthe frame; gripping jaws, pivoted to the free ends of the arms;mechanisms operatively, connected to the arms, and to the jaws, one formoving the arms up and down, one for moving them forward and rearward,one for turning the jaws, and one for moving the arms together and apartfrom each other; a driven shaft, and means on the shaft actuating eachof the aforesaid mechanisms in a predetermined.cycle, to move the saidarms toward the drum, and downward, and the jaws in line therewith; thento move the arms together, the drum then standing still, then upward andaway from the drum, to remove the mold from the machine, simultaneouslyrevolving the jaws to reverse the mold, and then moving the arms apartto release the mold; substantially as herein shown and described.

8. A machine for applying sand, powder and the like to molds, comprisinga frame, a hollow drum, having suitable openings in its sides, rotatablymounted in the frame; mechanism for intermittently rotating the drum;means for holding the molds thereto; a runway; a pair of arms movablymounted in the frame; gripping jaws. pivoted to the free ends of thearms; mechanisms, opera- 100 tively connected to the arms, and to thejaws, one for moving the arms up and down, one for moving them forwardand rearward, one for turning the jaws, and one for moving the armstogether and apart from 105 each other; mechanism for moving the moldsalong the runway; a driven shaft, and means on the shaft, actuating eachof the aforesaid mechanisms in a predetermined cycle, to move the saidarms toward the drum, and 110 downward, and the jaws in line therewith;then to move the arms together, the drum then standing still, thenupward and toward the runway, simultaneously revolving the jaws toreverse the mold, and then moving 115 the arms apart to release the moldwhen deposited on the runway, and also actuating the mechanism formoving the molds along the runway to remove the molds from the machine;substantially as herein shown and 120 described.

XVILLIAM C. TUTHILL.

Witnesses PAULA BATES, LOUISE KELLER.

Copies of this patent may be obtained for five cents each. by addressingthe Commissioner of Patents, Washington, D. C.

